Apparatus for the recovery of fats and the like from waste waters.



PATENTED JUNE 19, 190

; c. KREMER. APPARATUS FOR THBIRBCOVERY 0r FATS ANMDEHBLIKB PROM WASTEWATERS.

APPLICATION FILED FEB-1. 1906.

2 SHEETS-SHEET l.

INVENTOR,

R E W E R Kw H W. m Cw Attovne15 PATENTED JUNE 19, 19.66.

c; KREMER. I APPARATUS FOR THE RECOVERY oPrATs AND THE LIKE PR M WASTEWATERS.

g ArrLloAnon 11.21) P211. 1906.

2 SHEETS-SHEET 2.

INVENTQR.

WITNESSES .R E M m K H P m m R H 0 subject of. the King of Prussia,German Emsuchparticles of fat as are contained inthe means; v

7 same, reference being had to the accompany- 111g; drawings and to theletters marked a by their specific Germany, have invented'new and usefulImof Fats and the Like from Waste Vvaters, hf Whichthe following is aspecification.

overflow, and.thus allowed to escape, which has been hithertounavoidable, particularly I during a strong inflow of the waste watersUNITED srarns PATENT oFrioElY 'cnnistrorn KREMER, or BERLIN, Gianni my.I c APPARATUS'FOR THE YRECOVERY'QF'FAWTS A'NQMTHE rue: FROMWASYTEDWATQERS.

Application filed reimmy 1, 1906. Serial No- 298,96 4.

Jo- (ZZZ t0h0m it may concern; I I

Be it known that I, Cnmsrorn KREMER, a

pero'r, residing at Lindenstrasse 111, Berlin,

provements in Apparatus for the Recovery This inventlon relates toapparatus for the recovery of fats and the like and it consists, inimprovements of the class of apparatus protected by United StatesLetters Patent i. intended to overcome two disadvantages: first, toprevent particles of fat being carried away in the The present apparatusi into the apparatus and 'a strong movement of the same therein, and,further, to recover specifically heavy materials which fall to thebottom of the apparatus. Though the per-f centage of these particles offat is considerable, they are mixe'd so intimately with the settledsubstances that they cannot usually be separated therefrom withoutspecial In order that this invention may be the bet ter understood, Inow proceed to describe the thereon. 7,

Figure 1- shows a'wrtiealsection through apparatus constructed accordingto my invention. Fig. 2 shows a vertical section through a modified formo'l apparatus. In order to prevent any particles cl? fat beingcarriedinto the overllow-channel, inter mediate devices (deflecting orintercepting devices are showuin the drawings) are arranged according tothe present invention in front of the overflow-channel and constructedso that any particles of fat carried by the current are separatedtherein and recovered gravity, so that only such Waters escape whichhave been eompleteiy. freed from lat.

In Fig. 1, a and I) are the inner and outer vessels communicating witheach other, a being open below and I) being provided with a bottom. The,vessel 0 is provided with an internal cylindrical device, such as ring71,1'11 any suitable manner, so "that an annuiar tatented June 19,1906'. V

channel '11 is formed, through which the waste waters pass further, thevessel (1 is provided around its entire inner periphery and below thepart' h with a projecting rim is, which slants upward, so that the wastewaters which pass through asieve-like cover into the vessel a andthrouglii annular channeli and a sieve c, arranged therein in thedirection of the arrows, more particularly ointed outin said PatentNo.*751,303, are oreed by the projecting rim 7r to ascend into the domef g, fitted on the cylindrical device h in order to leave there the mainquantity. of the fat contained in suchwaste waters. Between the vessels(1 and b is provided a bell' shaped receptacle Z, open at the 'bottom,which is designed to present another'bafile edge or edges to the wastewaters',-which pass 1 from the vessel (1 to the vessel b by the lowerrim, which. is preferablyserrated or recessed.

Anoverflow channel d is also provided, and

the upper edges theresf, are also preferably serrated or recessed. Iprefer that said ehannel shall be, as shown, divided by a circularchannel m, which is formed by two concentric walls or rings n and o.' Inthe lower orlnce of this channel terminates a second channel p, formedbetween concentric walls 4 and s,

and which forces the waste waters ascending 7 from the hnver enlargedend oithe bell shaped redcptacle Z to pass in the direction shown by thearrows .2, so that the waters first flow over the overflow edges of thewalls I 'r a, leave in the channel m any fat whichmay still be carriedin them, and ascend again after lowing under the lower edges of the walla 0, and pass through the overflow-chim nel d tothe exit-tube c. s p Inthe apparatus shown in Fig. 2 means airealso pro'vid ed in order toseparate the fat.

which is mixed intimately with the heavy settling materials. It has beenfound, that such separation is possible if the floating substancescontaining the fat arc subjeoted .to. strong agitation. For this purposebaffle dea vices are constructed in the communicating passage betweenthe fat-collector a and the vessel 6, surrounding it'and provided with aIOC bottom in such a manner that the substances which are otherwisethrown down upon the bottom of the vessel 7) do not descend merely bytheir own gravity-say in vertical direction on the bottom of thereceptacle b a s is the casein the apparatus shown in Fig. 1, but arepressed, on the one hand, under the influe ence of the current ofiniiowi ng water, through narrow channels, preferably formed between thebaffle devices, and, on the other hand, a separation of fat is effectedby the friction to a and partly in a concentric channel m, like thatstated when describing Fig. 1. Thus the heavy descending substances areenergetically agitated by this ln'iprovcd arrangement and are freedmechanic'all r irom the adherinq A Z" particles of fat.

The construction, combination, and a1"- rangement of parts a, 1), cl, 9,[1,71, and o are in essential respects like t lat described withrelation to Fig. 1.

The concentric channel 7) (formed between the parts 11 and 8) 15connected at its lower end to the lower end of an outwardlydlaringchannel f below the cylindrical device band formed between the walls ofthe cones u and a, the former opening to the rim Zr and the letterterminating in a closed conical top a The lower end of the conical:channel 25 communicates with the channel. 'in such a manner that thewaste waters owing from the cylindrical device it ascend in the channel{9 in the direction of the arrows 20, while simu taneously the heaviermaterials pass the lower edge of the inner wall of the cone or fun .nelr downwardly in the direction of the arrows '0 and can fall onto thebottom of the vessel 5. y

In consequence of the narrowing; of the transverse section caused by theformation of the channel it the settling materials descending throughthe latter are subjected by the fluid-pressure to friction withinthemselves and against the walls a: and u of the channel 2!, whereby theparticles of fat held mechanically in the said materials are loosenedand pass upward in part against the current owing to their slightspecific gravity, into the top f {l of the cylindrical device 71 and inpart downwardly through the channel p to be separated in the channel m.The settling materials freed from fat pass in the direction of thearrows o and are deposited on the bottom of the vessel 1).

In each of the forms of apparatus illustrated the water escapes o'rdischarges by way of the pipe 0. With reference to the removal of fatirom either form of appa 'atns the perforated plate 7' and the dome fare lifted, and the accumulated fatty material may then be removed bymeans of dippers or otherwise.

I claim as new, and desire to secure by Let tors Patent, 18"

1. in an apparatus for recovery of fat from liquids, the combinatimi ofan outer vessel, an inner vessel open at its bottom, s: ring-likelat-collecting chamber brtwceu the said: vessels, and a channel forleading water dischaugcd from the inner vessel to the lower part of thefat-oiillecting chamber, dischargeorilices being 'lormcd between theupper end of the said channel and the lower end oi said chamber.

2. in an up zrutus for riwovory offal, from liquids, thecombination ofan outer vessel, an inner vessel open at its bottom, a l'ntcollectingchaml'icr between the inner and outer vessels, achannelforleiulingw:1tcrdiscluu' cd from the inner vessel to thel'ut-collruzting chau' ber aforesaid, an overllow-chnnncl a1 rangcdexternally ol said chamber, and a dis charge-orifice from the chamber tothe overflon channel.

in an apparatus for recovery of fats from liquids, the combination of anouter vessel, an inner fat-collecting vessel 0 open at its bottom, anannular int-collecting ehamher In open at its bottom and consisting oftwo parallel plates arranged outside 01 and away from the vessel (1 anann lcr chamber below said chamber m and open at it top and with saidopen top cute-ingaud spaced away her m open at its bottom andconsistingof two parallel plates arranged outside of mid away from thevessel 0 and an annular channel below said chamber 'maudopen at its topand with said open top entering and SIMKKIl'IHWL) from the open bottomor the chamber m.

l n an apparatus for recovery oi fats from liquids, the combination ofan outer vessel, an inner fat-collecting vessel o open at its bottom, aconical channel located below said inner vessel, an annularfat-collccting chamber m open at its bottom, and consisting of twoparallel plates arranged outside of and away from the vessel (1,:ind anannularrlumnel below said chan'iber m, and open at its top and with saidopen top entering and spaced away from the open bottom of the chamber m.

In witness whereof I have hermmto set my hand in the presence of twowitnesses.

1 CllltlS'lOPll KREMER.

lvitncsses r W. Kmnriin DANinL Koulo, Mouse: Serious.

